Boil the EggsPlace the eggs in a pot and cover with cold water. Bring to a boil over high heat, then turn off the heat and cover. Let sit for 7–8 minutes.
Cool the EggsTransfer the eggs to a bowl of ice water for 2 minutes to stop the cooking. Refresh the water if needed. Peel the eggs once cool.
Prep the EggsSlice the eggs in half. Remove the yolks from 4 eggs and mash them in a bowl. Finely chop the remaining 2 whole eggs and all the egg whites.
Make It CreamyAdd 2 tablespoons of cottage cheese, mayonnaise, and mustard to the mashed yolks. Mix until smooth and creamy.
Combine the SaladIn a large bowl, combine the chopped eggs, remaining cottage cheese, scallions, creamy yolk mixture, salt, pepper, and most of the red pepper flakes. Stir until evenly combined.
Chill and ServeRefrigerate for 30 minutes before serving to enhance flavor. Sprinkle with remaining red pepper flakes just before serving.